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Table 2 Uni and multivariate analysis

From: Salvage radiotherapy for biochemical relapse after complete PSA response following radical prostatectomy: outcome and prognostic factors for patients who have never received hormonal therapy

   3-year BNED (%) Univariate analysis Multivariate analysis
  Variable   p p (95% CI)
Gleason Score
  ≤7 61 0.25 0.38
  >7 78   
Pathological Stage
  ≤pT3a 77 0.59 0.63
  pT3a or pT3b 64   
Surgical Margins
  compromised 67 0.65 0.5
  clear 74   
PNLVSI
  positive 68 0.31 0.29
  negative 100   
Time to recurrence after RP
  ≤12 meses 75 0.9 0.85
  >12 meses 66   
PSADT
  ≤4 meses 48.4 0.01 0.01
  >4 meses 75.6   
Preradiation PSA
  ≤1 ng/ml 75.9 0.1 0.7
  >1 ng/ml 48.1   
Time to radiation after recurrence
  ≤3 months 100 0.04 0.1
  >3 months 60   
Clinical tumor on surgical bed
  Yes 80 0.4 0.46
  No 66   
Radiation dose (Gy)
  ≤66 Gy 76 0.62 0.7
  >66 Gy 68   
  1. CI, confidence interval; PNLVSI, perineural or lymphatic or vascular space invasion; PSADT, PSA doubling time; Gy, Gray.